RICARDO D. HERNANDEZ ROJAS2026-01-292026-01-29202110.1186/s40494-021-00525-02-s2.0-85108789759https://www.scopus.com/inward/record.uri?eid=2-s2.https://ucocris.uco.es/handle/123456789/33605ArcheologyArcheology (arts and humanities)Chemistry (miscellaneous)Computer Science ApplicationsConservationMaterials Science (miscellaneous)SpectroscopyThe cultural and heritage tourist, SEM analysis: the case of The Citadel of the Catholic Kingresearch article